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Monday, November 21, 2011

Diorella's Math Question #30 2.4

Question #30 2.4 : A square field has an area of 1000m². Laura wants to walk from one corner of the field to the opposite corner. If she walks at 1.5 m/s, how much time can she save by walking diagonally instead of walking along two adjacent sides? Express your answer to the nearest tenth of a second.

Step 1) Find the square root of the area or find the side length of the square

Step 2) Find the distance of the 2 adjacent sides

Step 3) Figure out how long it takes to walk the two adjacent sides

Step 4) Find out how long it takes to walk diagonally

Solution:
Subtract the time it takes to walk diagonally from the time it takes to walk the 2 sides.
42.25 - 29.85 = 12.4 seconds.
Laura saves 12.4 seconds by walking diagonally instead of walking the two adjacent sides.

6 comments:

  1. Great post Diorella! I really like how you explained to us in good detail how you got your answer. You also included pictures! Your post was very easy to understand and well thought out. I really liked your post. Keep up the good work!

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  2. Well done Diorella! I liked how your post was very easy to understand, you explained well and it was organized. Good job on the pictures. Keep it up!

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  3. Nice post Diorella! Your post was very easy to understand and you explained all the things you did very well. The pictures helped a lot and they were very neat. Good job!

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  4. Great post Diorella. I liked how you took your own pictures of your work. Your post was also very neat, organized and easy to read. You explained things really well. Great job.

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  5. Great job Diorella! Your post was easy to understand. I liked how you explained what to do step by step. Also I liked how it was very neat and easy to read. Keep it up!

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  6. Great job, Diorella! Your post was very organized and was easy to understand. I liked how the pictures were clear to read and how you highlighted in the key points. Next time, try adding in a link. Other than that, keep it up!

    ReplyDelete